/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Tencent is pleased to support the open source community by making behaviac available.
//
// Copyright (C) 2015 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at http://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and limitations under the License.
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include "behaviac/fsm/alwaystransition.h"
#include "behaviac/behaviortree/attachments/effector.h"

namespace behaviac
{
    bool AlwaysTransition::IsValid(Agent* pAgent, BehaviorTask* pTask) const
    {
        if (AlwaysTransition::DynamicCast(pTask->GetNode()) == 0)
        {
            return false;
        }

        return super::IsValid(pAgent, pTask);
    }

    void AlwaysTransition::load(int version, const char* agentType, const properties_t& properties)
    {
        super::load(version, agentType, properties);

		for (propertie_const_iterator_t p = properties.begin(); p != properties.end(); ++p)
		{

			if (StringUtils::StrEqual(p->name, "TransitionPhase"))
			{
				if (StringUtils::StrEqual(p->value, "ETP_Exit"))
				{
					this->m_transitionPhase = ETP_Exit;
				}
				else if (StringUtils::StrEqual(p->value, "ETP_Success"))
				{
					this->m_transitionPhase = ETP_Success;
				}
				else if (StringUtils::StrEqual(p->value, "ETP_Failure"))
				{
					this->m_transitionPhase = ETP_Failure;
				}
				else if (StringUtils::StrEqual(p->value, "ETP_Always"))
				{
					this->m_transitionPhase = ETP_Always;
				}
				else
				{
					BEHAVIAC_ASSERT(false);
				}
			}
		}
    }

	bool AlwaysTransition::Evaluate(Agent* pAgent)
	{
		return super::Evaluate(pAgent);
	}

	bool AlwaysTransition::Evaluate(Agent* pAgent, EBTStatus status)
	{
		if (this->m_transitionPhase == ETP_Always)
		{
			return true;
		}
		else if (status == BT_SUCCESS && (this->m_transitionPhase == ETP_Success || this->m_transitionPhase == ETP_Exit))
		{
			return true;
		}
		else if (status == BT_FAILURE && (this->m_transitionPhase == ETP_Failure || this->m_transitionPhase == ETP_Exit))
		{
			return true;
		}

		return false;
	}
}
